Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
3163283Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
10997070155157111650.0old
ECM
DigitsB1Curves
255000098 / 280
Estimated T-Level: 21.8 ⓘ
TF below 2^67 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-31kkmrkkblmbrbkD6ADA4C12A5A09DF1231853753
Verified2017-11-18Oliver KruseD6ADA4C12A5A09DF1306924453
History
DateUserTypeResult
2022-09-12JossNF-PM1
B1=1000000, B2=241175550
2022-03-26LordJuliusNF
no factor from 2^66 to 2^67
2022-03-26LordJuliusNF
no factor from 2^65 to 2^66
2022-03-26LordJuliusNF
no factor from 2^64 to 2^65
2022-03-26LordJuliusNF
no factor from 2^63 to 2^64
2022-03-26LordJuliusNF
no factor from 2^62 to 2^63
2022-02-22JossNF-PM1
B1=1000000, B2=134343300
2021-05-10JossNF
no factor from 2^67 to 2^68
2021-01-12JossNF
no factor from 2^64 to 2^65
2021-01-07JossNF
no factor from 2^63 to 2^64
2021-01-06JossNF
no factor from 2^62 to 2^63
2021-01-06JossNF-PM1
B1=316328, B2=3163283, E=6
2021-01-05JossNF-PM1
B1=316328
2021-01-04JossNF
no factor from 2^61 to 2^62
2021-01-04JossNF
no factor from 2^60 to 2^61
2021-01-02JossNF-PM1
B1=158164
2017-11-18Oliver KruseC-PRP
M3163283/1099707015515711 : D6ADA4C12A5A09DF
PRP: Verified
PRP without proof (not generated)
2017-10-31kkmrkkblmbrbkC-PRP
M3163283/1099707015515711 : D6ADA4C12A5A09DF
PRP: Verified
PRP without proof (not generated)